The earliest credit goes to Charles Edward Montague, English novelist and essayist (1867-1928): There is no limit to what a man can do so long as he does not care a straw who gets the credit for it.~Disenchantment, ch. 15 (1922)

Truman and Wooden made it more popular and current.

* * *Since we are destined to live out our lives in the prison of our minds, our one duty is to furnish it well~Peter Ustinov